Question

[(1/3)^2-(1/3)^3]×3^3

Answer 1

$[ ( { \frac{1}{3} )}^{2} - ( { \frac{1}{3}) }^{3} ] \times {3}^{3} \\ \\ =[ \: \frac{1}{9} - \frac{1}{27} \: ] \times 27 \\ \\ = [ \frac{3 - 1}{27} ] \times 27 \\ \\ = \frac{2}{27} \times 27 \\ \\ = 2$